Re: [Full-disclosure] Orange Spain disclosing user phone number

[B1towel <ben@xxxxxxxxxxx>]

It would be funny to see advertisers send targeted SMS ads using this. I bet 
that the advertisers of web sites that participate in iframe ads would also get 
this information, assuming the Phone would load up iframe ads. 

I think the provider should fix this, because if someone developed an exploit 
similar to the one that was able to compromise the iPhone a while back just by 
sending a maliciously formed SMS message, your phone could be compromised just 
by going to a website where this information is sent to the web server.

I know this is pretty obvious, just my 2 cents.

On Aug 30, 2010, at 7:00 AM, full-disclosure-request@xxxxxxxxxxxxxxxxx wrote:

> 
> Message: 2
> Date: Sun, 29 Aug 2010 21:09:50 +0200
> From: "xufi ." <xufxuf@xxxxxxxxx>
> Subject: [Full-disclosure] Orange Spain disclosing user phone number
> To: full-disclosure@xxxxxxxxxxxxxxxxx
> Message-ID:
>       <AANLkTinKy8UsAkPd0gg5UoSESdfeNE8bhjAA-OepKO1Q@xxxxxxxxxxxxxx>
> Content-Type: text/plain; charset=ISO-8859-1
> 
> Hi,
> Doing an assessment on mobile GWs I found that Orange Spain is adding
> the user MSISDN in any HTTP request sent in it?s network. That means
> that is really simple to get the user phone number from a Orange Spain
> user. On one hand, I saw that Orange Spain uses the header
> x-up-calling-line-id to add a user temporary ID that changes every 24h
> but I also found that in any HTTP request they will add the user phone
> number in the header X-Network-info. In particular the HTTP header
> looks like as follow:
> 
> X-Network-info: CSD,34xxxxxxxxx,unsecured
> 
> where xxxxxxxxx is the user MSISDN

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